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Finding the Third Proportional to 639,559.50 and 1,375,893

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Solution

The third proportional to 639,559.50 and 1,375,893 is: 2,959,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,559.50 : 1,375,893 = 1,375,893 : x
  2. Step 2: Convert to fraction form
    639,559.50/1,375,893 = 1,375,893/x
  3. Step 3: Cross multiply
    639,559.50x = 1,375,893 × 1,375,893
  4. Step 4: Simplify right side
    639,559.50x = 1,893,081,547,449
  5. Step 5: Solve for x
    x = 1,893,081,547,449/639,559.50
  6. Step 6: Final answer
    x = 2,959,977.21

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.